87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
/**********************************************************
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This software is part of J.-S. Caux's ABACUS library.
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Copyright (c) J.-S. Caux.
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-----------------------------------------------------------
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File: LiebLin_DSF_GeneralState.cc
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Purpose: function for ABACUS for LiebLin gas, on general states
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***********************************************************/
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#include "ABACUS.h"
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using namespace std;
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using namespace ABACUS;
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int main(int argc, char* argv[])
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{
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if (argc != 11) { // provide some info
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cout << endl << "Welcome to ABACUS\t(copyright J.-S. Caux)." << endl;
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cout << endl << "Usage of LiebLin_DSF_Tgt0 executable: " << endl;
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cout << endl << "Provide the following arguments:" << endl << endl;
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cout << "char whichDSF \t\t Which structure factor should be calculated ? Options are: "
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"d for rho rho, g for psi psi{dagger}, o for psi{dagger} psi" << endl;
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cout << "DP c_int \t\t Value of the interaction parameter: use positive real values only" << endl;
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cout << "DP L \t\t\t Length of the system: use positive real values only" << endl;
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cout << "int N \t\t\t Number of particles: use positive integer values only" << endl;
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cout << "char* defaultScanStatename:\t\t file [].Ix2 contains the quantum numbers defining the "
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"AveragingState; used as defaultScanStatename" << endl;
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cout << "int iKmin" << endl << "int iKmax \t\t Min and max momentum integers to scan over: "
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"recommended values: -2*N and 2*N" << endl;
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cout << "int Max_Secs \t\t Allowed computational time: (in seconds)" << endl;
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cout << "DP target_sumrule \t sumrule saturation you're satisfied with" << endl;
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cout << "bool refine \t\t Is this a refinement of earlier calculations ? (0 == false, 1 == true)" << endl;
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cout << endl << "EXAMPLE: " << endl << endl;
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cout << "LiebLin_DSF d 1.0 100.0 100 0 200 0.56 600 1.0 0" << endl << endl;
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}
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else { // (argc == 10), correct nr of arguments
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int n = 1;
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char whichDSF = *argv[n++];
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DP c_int = atof(argv[n++]);
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DP L = atof(argv[n++]);
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int N = atoi(argv[n++]);
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char* Ix2filenameprefix = argv[n++];
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int iKmin = atoi(argv[n++]);
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int iKmax = atoi(argv[n++]);
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int Max_Secs = atoi(argv[n++]);
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DP target_sumrule = atof(argv[n++]);
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bool refine = (atoi(argv[n++]) == 1);
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// Read the Ix2 from the file:
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Vect<int> Ix2_input(N);
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ifstream Ix2_input_file;
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stringstream filenamestrstream;
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filenamestrstream << Ix2filenameprefix;
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string defaultScanStatename = filenamestrstream.str();
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filenamestrstream << ".Ix2";
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string filenamestr = filenamestrstream.str();
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const char* filename_Cstr = filenamestr.c_str();
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Ix2_input_file.open(filename_Cstr);
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if (Ix2_input_file.fail()) {
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cout << filename_Cstr << endl;
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ABACUSerror("Could not open Ix2 input file in LiebLin_DSF_GeneralState");
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}
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for (int i = 0; i < N; ++i) {
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Ix2_input_file >> Ix2_input[i];
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}
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// Now define the AveragingState
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LiebLin_Bethe_State AveragingState(c_int, L, N);
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AveragingState.Ix2 = Ix2_input;
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AveragingState.Compute_All(true);
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Scan_LiebLin (whichDSF, AveragingState, defaultScanStatename, iKmin, iKmax, Max_Secs, target_sumrule, refine);
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}
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return(0);
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}
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